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1.2888

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X20CoCrWMo10-9 X45CoCrMoV5-5-3
#1.2888

Description

Germany DIN 1.2888 Hot working alloy tool steel and 1.2888 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 1.2888
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 1.2888 DIN Germany Hot working alloy tool steel
1.2782
X13NiCrSi36-16
1.2786
X23CrNi17
1.2787
X32CrMoCoV3-3-3
1.2885
X15CrMoCoV10-10-5
1.2886
X20CoCrWMo10-9

Chemical composition(mass fraction)(wt.%) of the 1.2888

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) Co(%)
0.17-0.23 0.15-0.35 0.40-0.60 Max 0.035 Max 0.035 9.00-10.00 1.80-2.20 9.50-10.5

Mechanical Properties of steel grade 1.2888

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
564 (≥) 242 (≥) 21 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade 1.2888

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
32 - -     0.14 -  
495 156 - 24.3 434   -  
367 - 21 23.2   233 241

Heat Treatment of steel grade 1.2888

Heat treated : 1838°C - 1256°C

Technological Curves of steel grade 1.2888

Cross Reference Table (Equivalent Grade) of 1.2888

Grade Standard Country Application
1.2888 DIN Germany Hot working alloy tool steel
X20CoCrWMo10-9 X45CoCrMoV5-5-3
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Jiangyou Longhai Special Steel Co.,Ltd.

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